Gastropods are a highly diverse group of mollusks that include between 60,000 and 80,000 living species.Gastropods account for nearly 80 percent of all living mollusks. More than 15,000 living species of bivalves are known, of which about 500 live in fresh water; the others occur in all seas. Bivalves usually live on or in sandy or Clam, in general, any member of the invertebrate class Bivalvia—mollusks with a bivalved shell (i.e., one with two separate sections). The field of science, though, dealing with molluscs, is malacology (malakos meaning soft in Greek). Mollusks is one of the most fascinating and diverse animal groups on our planet.. Mollusca is one of the most diverse groups of animals on the planet, with at least 50,000 living species (and more likely around 200,000). Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks, 2nd ed. It includes such familiar organisms as snails, octopuses, squid, clams, scallops, oysters, and chitons. Journal/Book Name, Vol. Click on column title to sort by that column. Mouse over thumbnail for larger thumbnail. There are many different molluscs, each with a different scientific name. Click on family name to go to family page. Invert PDF (update 4/12/19) Select a category. [In the US, the spelling mollusk is used.] Although the phylum Mollusca are made up of a set of incredibly diverse animals, there are certain characteristics which aid to classify them. Members of this group include terrestrial snails and slugs, sea butterflies, tusk shells, conchs, whelks, limpets, periwinkles, oyster borers, cowries, nudibranchs, and many others. These groups have in common a shell whose outline is elongated and asymmetrical compared with other edible clams, which are often more or less rounded or oval. No. Mollusca, the scientific name applied since then means "soft animals", molluscs lacking any form of skeleton (mollis means soft in Latin). : American Fisheries Society Special Publication 26 Mussel (/ ˈ m ʌ s ə l /) is the common name used for members of several families of bivalve molluscs, from saltwater and freshwater habitats. Bivalve, (class Bivalvia), any of more than 15,000 species of clams, oysters, mussels, scallops, and other members of the phylum Mollusca characterized by a shell that is divided from front to back into left and right valves. Marine Mollusks of Texas . Click on common or scientific name to go to species page. Phylum Mollusca, known as mollusks, are a group of invertebrate animals that include slugs, snails, mussels, octopus, bivalves, gastropods, etc.This phylum is attributed to 85,000 species with tens of thousands of extinct Mollusca species.. A subspecies, H. discus hannai, is recognized in Japanese waters, but H. discus hannai is morphologically, ecologically and genetically different from H. discus (Ino, 1980). The valves are connected to one another at a hinge. Mollusc is the scientific name. Whether you are looking to discover mollusks characteristics, classification of mollusca and/or information about all types of mollusks, this article is for you. 5.2 NOTES ON MOLLUSCS SCIENTIFIC NAMES * The taxonomy of Haliotis discus is very confused (Hahn, 1989). NEW Marine Life Trivia . Bivalves. Mollusks refer to are a large group of soft-bodied invertebrate animals.